/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.cxf.transport.http_jetty;
import java.io.FilterInputStream;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.GeneralSecurityException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.cxf.Bus;
import org.apache.cxf.BusFactory;
import org.apache.cxf.common.classloader.ClassLoaderUtils;
import org.apache.cxf.common.classloader.ClassLoaderUtils.ClassLoaderHolder;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.common.util.ReflectionUtil;
import org.apache.cxf.configuration.jsse.TLSServerParameters;
import org.apache.cxf.configuration.security.CertificateConstraintsType;
import org.apache.cxf.continuations.ContinuationProvider;
import org.apache.cxf.continuations.SuspendedInvocationException;
import org.apache.cxf.helpers.IOUtils;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.io.CopyingOutputStream;
import org.apache.cxf.message.ExchangeImpl;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageImpl;
import org.apache.cxf.service.model.EndpointInfo;
import org.apache.cxf.transport.http.AbstractHTTPDestination;
import org.apache.cxf.transport.http.DestinationRegistry;
import org.apache.cxf.transport.http.HTTPSession;
import org.apache.cxf.transport.http_jetty.continuations.JettyContinuationProvider;
import org.apache.cxf.transport.https.CertConstraintsJaxBUtils;
import org.eclipse.jetty.http.Generator;
import org.eclipse.jetty.io.AbstractConnection;
import org.eclipse.jetty.server.AbstractHttpConnection.Output;
import org.eclipse.jetty.server.Request;
import org.springframework.util.ClassUtils;
public class JettyHTTPDestination extends AbstractHTTPDestination {
private static final Logger LOG =
LogUtils.getL7dLogger(JettyHTTPDestination.class);
protected JettyHTTPServerEngine engine;
protected JettyHTTPServerEngineFactory serverEngineFactory;
protected ServletContext servletContext;
protected URL nurl;
protected ClassLoader loader;
/**
* This variable signifies that finalizeConfig() has been called.
* It gets called after this object has been spring configured.
* It is used to automatically reinitialize things when resources
* are reset, such as setTlsServerParameters().
*/
private boolean configFinalized;
/**
* Constructor
*
* @param b the associated Bus
* @param registry the associated destinationRegistry
* @param ei the endpoint info of the destination
* @param serverEngineFactory the serverEngineFactory which could be used to create ServerEngine
* @throws java.io.IOException
*/
public JettyHTTPDestination(
Bus bus,
DestinationRegistry registry,
EndpointInfo ei,
JettyHTTPServerEngineFactory serverEngineFactory
) throws IOException {
//Add the default port if the address is missing it
super(bus, registry, ei, getAddressValue(ei, true).getAddress(), true);
this.serverEngineFactory = serverEngineFactory;
nurl = new URL(endpointInfo.getAddress());
loader = bus.getExtension(ClassLoader.class);
}
protected Logger getLogger() {
return LOG;
}
public void setServletContext(ServletContext sc) {
servletContext = sc;
}
/**
* Post-configure retreival of server engine.
*/
protected void retrieveEngine()
throws GeneralSecurityException,
IOException {
engine =
serverEngineFactory.retrieveJettyHTTPServerEngine(nurl.getPort());
if (engine == null) {
engine = serverEngineFactory.
createJettyHTTPServerEngine(nurl.getHost(), nurl.getPort(), nurl.getProtocol());
}
assert engine != null;
TLSServerParameters serverParameters = engine.getTlsServerParameters();
if (serverParameters != null && serverParameters.getCertConstraints() != null) {
CertificateConstraintsType constraints = serverParameters.getCertConstraints();
if (constraints != null) {
certConstraints = CertConstraintsJaxBUtils.createCertConstraints(constraints);
}
}
// When configuring for "http", however, it is still possible that
// Spring configuration has configured the port for https.
if (!nurl.getProtocol().equals(engine.getProtocol())) {
throw new IllegalStateException(
"Port " + engine.getPort()
+ " is configured with wrong protocol \""
+ engine.getProtocol()
+ "\" for \"" + nurl + "\"");
}
}
/**
* This method is used to finalize the configuration
* after the configuration items have been set.
*
*/
public void finalizeConfig() {
assert !configFinalized;
try {
retrieveEngine();
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
}
configFinalized = true;
}
/**
* Activate receipt of incoming messages.
*/
protected void activate() {
super.activate();
LOG.log(Level.FINE, "Activating receipt of incoming messages");
URL url = null;
try {
url = new URL(endpointInfo.getAddress());
} catch (Exception e) {
throw new Fault(e);
}
engine.addServant(url,
new JettyHTTPHandler(this, contextMatchOnExact()));
}
/**
* Deactivate receipt of incoming messages.
*/
protected void deactivate() {
super.deactivate();
LOG.log(Level.FINE, "Deactivating receipt of incoming messages");
engine.removeServant(nurl);
}
protected String getBasePathForFullAddress(String addr) {
try {
return new URL(addr).getPath();
} catch (MalformedURLException e) {
return null;
}
}
protected void doService(HttpServletRequest req,
HttpServletResponse resp) throws IOException {
doService(servletContext, req, resp);
}
static AbstractConnection getConnectionForRequest(Request r) {
try {
return (AbstractConnection)r.getClass().getMethod("getConnection").invoke(r);
} catch (Exception ex) {
return null;
}
}
private void setHeadFalse(AbstractConnection con) {
try {
Generator gen = (Generator)con.getClass().getMethod("getGenerator").invoke(con);
gen.setHead(false);
} catch (Exception ex) {
//ignore - can continue
}
}
protected void doService(ServletContext context,
HttpServletRequest req,
HttpServletResponse resp) throws IOException {
if (context == null) {
context = servletContext;
}
Request baseRequest = (req instanceof Request)
? (Request)req : getCurrentRequest();
if (!"HEAD".equals(req.getMethod())) {
//bug in Jetty with persistent connections that if a HEAD is
//sent, a _head flag is never reset
AbstractConnection c = getConnectionForRequest(baseRequest);
if (c != null) {
setHeadFalse(c);
}
}
if (getServer().isSetRedirectURL()) {
resp.sendRedirect(getServer().getRedirectURL());
resp.flushBuffer();
baseRequest.setHandled(true);
return;
}
// REVISIT: service on executor if associated with endpoint
ClassLoaderHolder origLoader = null;
Bus origBus = BusFactory.getAndSetThreadDefaultBus(bus);
try {
if (loader != null) {
origLoader = ClassLoaderUtils.setThreadContextClassloader(loader);
}
serviceRequest(context, req, resp);
} finally {
if (origBus != bus) {
BusFactory.setThreadDefaultBus(origBus);
}
if (origLoader != null) {
origLoader.reset();
}
}
}
protected void serviceRequest(final ServletContext context,
final HttpServletRequest req,
final HttpServletResponse resp)
throws IOException {
Request baseRequest = (req instanceof Request)
? (Request)req : getCurrentRequest();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Service http request on thread: " + Thread.currentThread());
}
Message inMessage = retrieveFromContinuation(req);
if (inMessage == null) {
inMessage = new MessageImpl();
ExchangeImpl exchange = new ExchangeImpl();
exchange.setInMessage(inMessage);
setupMessage(inMessage, context, req, resp);
((MessageImpl)inMessage).setDestination(this);
exchange.setSession(new HTTPSession(req));
}
try {
incomingObserver.onMessage(inMessage);
resp.flushBuffer();
baseRequest.setHandled(true);
} catch (SuspendedInvocationException ex) {
if (ex.getRuntimeException() != null) {
throw ex.getRuntimeException();
}
//else nothing to do
} catch (Fault ex) {
Throwable cause = ex.getCause();
if (cause instanceof RuntimeException) {
throw (RuntimeException)cause;
} else {
throw ex;
}
} catch (RuntimeException ex) {
throw ex;
} finally {
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Finished servicing http request on thread: " + Thread.currentThread());
}
}
}
protected OutputStream flushHeaders(Message outMessage, boolean getStream) throws IOException {
OutputStream out = super.flushHeaders(outMessage, getStream);
return wrapOutput(out);
}
private OutputStream wrapOutput(OutputStream out) {
try {
if (out instanceof Output) {
out = new JettyOutputStream((Output)out);
}
} catch (Throwable t) {
//ignore
}
return out;
}
static class JettyOutputStream extends FilterOutputStream implements CopyingOutputStream {
final Output out;
boolean written;
public JettyOutputStream(Output o) {
super(o);
out = o;
}
@Override
public int copyFrom(InputStream in) throws IOException {
if (written) {
return IOUtils.copy(in, out);
}
CountingInputStream c = new CountingInputStream(in);
out.sendContent(c);
return c.getCount();
}
public void write(int b) throws IOException {
written = true;
out.write(b);
}
public void write(byte b[], int off, int len) throws IOException {
written = true;
out.write(b, off, len);
}
@Override
public void close() throws IOException {
// Avoid calling flush() here. It interferes with
// content length calculation in the generator.
out.close();
}
}
static class CountingInputStream extends FilterInputStream {
int count;
public CountingInputStream(InputStream in) {
super(in);
}
public int getCount() {
return count;
}
@Override
public int read() throws IOException {
int i = super.read();
if (i != -1) {
++count;
}
return i;
}
@Override
public int read(byte[] b) throws IOException {
int i = super.read(b);
if (i != -1) {
count += i;
}
return i;
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
int i = super.read(b, off, len);
if (i != -1) {
count += i;
}
return i;
}
}
public ServerEngine getEngine() {
return engine;
}
protected Message retrieveFromContinuation(HttpServletRequest req) {
return (Message)req.getAttribute(CXF_CONTINUATION_MESSAGE);
}
protected void setupContinuation(Message inMessage,
final HttpServletRequest req,
final HttpServletResponse resp) {
if (engine.getContinuationsEnabled()) {
inMessage.put(ContinuationProvider.class.getName(),
new JettyContinuationProvider(req, resp, inMessage));
}
}
private AbstractConnection getCurrentConnection() {
// AbstractHttpConnection on Jetty 7.6, HttpConnection on Jetty <=7.5
Class<?> cls = null;
try {
cls = ClassUtils.forName("org.eclipse.jetty.server.AbstractHttpConnection",
AbstractConnection.class.getClassLoader());
} catch (Exception e) {
//ignore
}
if (cls == null) {
try {
cls = ClassUtils.forName("org.eclipse.jetty.server.HttpConnection",
AbstractConnection.class.getClassLoader());
} catch (Exception e) {
//ignore
}
}
try {
return (AbstractConnection)ReflectionUtil
.setAccessible(cls.getMethod("getCurrentConnection")).invoke(null);
} catch (Exception e) {
//ignore
}
return null;
}
private Request getCurrentRequest() {
AbstractConnection con = getCurrentConnection();
try {
return (Request)ReflectionUtil
.setAccessible(con.getClass().getMethod("getRequest")).invoke(con);
} catch (Exception e) {
//ignore
}
return null;
}
}